Sydney - A powerful cyclone packing expected winds of more than 200km/h was threatening Australia's west coast on Monday, forcing towns into lockdown and shutting iron ore operations.
A red alert was issued for Port Hedland and South Hedland on Western Australia’s resource-rich but sparsely-populated Pilbara coast as the category three cyclone intensified offshore, forcing residents to batten down.
"This is a powerful system," Neil Bennett, a spokesperson for the Cyclone Warning Centre in Perth told AFP, saying that winds were already building around Port Hedland to about 70km/h.
"Right around the eye [of the storm] we could see gusts of 200km/h or more."
Cyclone Christine is set to make landfall between Karratha and Port Hedland at about midnight on Monday and authorities are warning of damaging storm surges, particularly if it hits at high tide.
"Rapid and powerful flooding is likely as severe tropical Cyclone Christine approached the coast," the western Australian department of fire and emergency services said in an alert.
Expecting the worst
"Tides may rise significantly above the normal high tide mark with damaging waves and very dangerous coastal inundation."
Residents under the red alert are already seeking shelter, and have been ordered to remain indoors and shut off gas, water and electricity.
"It's looking very ominous, certainly it's been very grey, we have been experiencing an increase in winds, we have been getting some strong gusts and we have been getting a little bit of rain," Port Hedland mayor Kelly Howlett told the ABC.
"We know we are expecting more and I guess that's what we are all bracing for and being prepared for."
Global miner BHP Billiton said its port and rail operations in Port Hedland had been suspended, with tie-down activities completed.